Methods and systems for irrigation at stabilized pressure
AssigneeN-Drip Ltd.
InventorsUri Shani, Sharon Dabach, Zvi Miller
Life of this patent
Estimating the term…
Abstract
A method of irrigation comprises supplying water to an inclined irrigation pipe provided with a plurality of drippers such that a pressure at a highest level of the inclined irrigation pipe is at most 200 cm H2O.
Claims26
A method of irrigation, the method comprising supplying water to an inclined irrigation pipe provided with a plurality of drippers such that a pressure at a highest level of said inclined irrigation pipe is at most 200 cm H2O, and stabilizing water pressure within said inclined irrigation pipe by at least one water pressure stabilizer such that said water pressure varies along a length of said inclined irrigation pipe by no more than 50%;
- wherein at least one of said drippers comprises a water pathway that is peripheral with respect to a body of said dripper, and that allows water to flow at a plurality of directions at any point along a length of said dripper.
A method of irrigation, the method comprising supplying water by a water distribution conduit to an inclined irrigation pipe provided with a plurality of drippers such that a pressure at a highest level of said inclined irrigation pipe is at most 200 cm H2O, and stabilizing water pressure within said inclined irrigation pipe by at least one water pressure stabilizer such that said water pressure varies along a length of said inclined irrigation pipe by no more than 50%;
- wherein said water pressure stabilizer is connected to said water distribution conduit, and comprises a tank having an entry port, a water shutter controlling water entry through said port, and a float element operatively associated with said water shutter in a manner that a change in a vertical position of said float element effects a rotation of said water shutter.
A method of irrigation, the method comprising supplying water to an inclined irrigation pipe provided with a plurality of drippers such that a pressure at a highest level of said inclined irrigation pipe is at most 200 cm H2O, and stabilizing water pressure within said inclined irrigation pipe by at least one water pressure stabilizer such that said water pressure varies along a length of said inclined irrigation pipe by no more than 50%;
- wherein said water pressure stabilizer comprises a container, a water inlet, a water outlet and a float element disposed within said container below said water inlet to block said water inlet when a height of water within said container reaches a predetermined level.
A method of irrigation, the method comprising supplying water to an inclined irrigation pipe provided with a plurality of drippers such that a pressure at a highest level of said inclined irrigation pipe is at most 200 cm H2O, and stabilizing water pressure within said inclined irrigation pipe by at least one water pressure stabilizer such that said water pressure varies along a length of said inclined irrigation pipe by no more than 50%;
- wherein at least one of said plurality of drippers is characterized by a pressure-discharge dependence which comprises a linear relation between a discharge rate at an outlet of said dripper and an inlet pressure at an inlet of said dripper, for inlet pressure of from about 10 am H2O to about cm 200 H2O.
A method of irrigation, the method comprising supplying water to an inclined irrigation pipe provided with a plurality of drippers such that a pressure at a highest level of said inclined irrigation pipe is at most 200 cm H2O, and stabilizing water pressure within said inclined irrigation pipe by at least one water pressure stabilizer such that said water pressure varies along a length of said inclined irrigation pipe by no more than 50%;
- wherein said dripper comprises a niche formed in an external surface thereof, and an outlet is formed within said niche.
A method of irrigation, the method comprising supplying water to an inclined irrigation pipe provided with a plurality of drippers such that a pressure at a highest level of said inclined irrigation pipe is at most 200 cm H2O, and stabilizing water pressure within said inclined irrigation pipe by at least one water pressure stabilizer such that said water pressure varies along a length of said inclined irrigation pipe by no more than 50%;
- wherein at least one dripper of said plurality of drippers is characterized by a volumetric flow rate that varies non-linearly as a power of a pressure P at an inlet of said at least one dripper.
Dependencies are inferred from the claim text.